MIM superalloys:The effect of lower-cost nitrogen atomisation on properties of sintered IN713C

摘要

Metal Injection Moulded nickel base superalloy parts are today found in the most demanding service environments,including aerospace and power generation applications.In the automotive sector,MIM has been challenging investment casting for the production of IN713C turbocharger wheels.While MIM offers numerous advantages,powder cost is a major consideration,particularly where argon atomisation is needed for Ti and Al.Here,Sandvik Osprey and Chenming Electronic Technology Corp.(UNEEC)explore the effect of lower-cost nitrogen atomisation on properties of sintered IN713C.Elevated temperature tensile testing has been performed on sintered parts and the effect of nitrogen on microstructural development is compared with conventional argon-atomised IN713C.